experiment
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n.
1.实验;试验[C][U][(+on)]
Some people learn by experiment and others learn by experience.
一些人通过实验学习,另一些人则从经验中学习.
vi.
1.进行实验,试验[(+on/with)]
He is experimenting with drugs to cure hepatitis.
他正在试验治疗肝炎的药.
Have they ever experimented on a large number of patients?
他们可曾在大批病人身上实验过?